Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., speaks at a meeting with insurance customers in New Delhi, India, on Friday, March 25, 2011. Buffett, the billionaire who urged Congress in 2009 to guard against inflation, said investors should avoid long-term fixed-income bets in U.S. dollars because the currency's purchasing power will decline. Photographer: Pankaj Nangia/Bloomberg via Getty Images